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<!----------------------------------------------------------

	Copyright (c) 2013 Jean-Marc VIGLINO,
	released under the Beerware license (http://fr.wikipedia.org/wiki/Beerware).

	Affichage d'une carte Geoportail avec OL3

------------------------------------------------------------>
	<title>ol-ext: ol control profil</title>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

	<meta name="description" content="A profil control for OL3 that draw a profil of a 3D lineString." />
	<meta name="keywords" content="ol3, profil, control, 3D, Z, altitude, GPX, GPS" />

	<!-- jQuery -->
	<script type="text/javascript" src="https://code.jquery.com/jquery-1.11.0.min.js"></script>

	<!-- Openlayers -->
    <link rel="stylesheet" href="https://openlayers.org/en/latest/css/ol.css" />
	<script type="text/javascript" src="https://openlayers.org/en/latest/build/ol.js"></script>
	<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL,Object.assign"></script>

	<!-- ol-ext -->
    <link rel="stylesheet" href="../../dist/ol-ext.css" />
	<script type="text/javascript" src="../../dist/ol-ext.js"></script>

	<link rel="stylesheet" href="../style.css" />
	<style>
		/* Hide info for profil on map */
		.ol-control.ol-profil table
		{	display: none;
		}
		/* Customize cursor color */
		.options .ol-profilbar, .options .ol-profilcursor::before
		{	background-color: blue;
		}
	</style>
	</head>
<body >
	<a href="https://github.com/Viglino/ol-ext" class="icss-github-corner"><i></i></a>

	<a href="../../index.html">
		<h1>ol-ext: ol control profil</h1>
	</a>
	<div class="info">
		<i>ol.control.Profil</i> is a control that draw a profil of a 3D lineString 
		(with a XYZ or XYZM layout).
		<br/>
		The control can be drawn inside or outside the map.
		<br/>
		It fires an <i>over</i> and <i>out</i> event with informations on the point of the profil 
		that is pointed by the mouse (to show the point on the map).
		<ul>
			<li>
				<i>graduation</i> option let you specify the z axis graduation interval
			</li>
			<li>
				<i>zmin</i> option let you specify the z axis origin
			</li>
			<li>
				<i>zmax</i> option let you specify the z axis maximum
			</li>
			<li>
				<i>amplitude</i> option let you specify the alitude amplitude
			</li>
			<li>
				The <i>popup</i> function lets you show a popup when cursor fly over the profil.
			</li>
		</ul>
	</div>

	<!-- DIV pour la carte -->
	<div id="map" style="width:600px; height:400px;"></div>

	<div class="options">
		<h2>Options:</h2>
		<a target="_new" download="profil.png" class="btn" onclick="this.setAttribute('href',profil2.getImage());">Export PNG</a>
		<a target="_new" download="profil.png" class="btn" onclick="profil.toggle();">Toggle profile (programatically)</a>
	</div>

	<script type="text/javascript">
	// Layers
	var layer = new ol.layer.Tile({ source: new ol.source.Stamen({ layer: 'watercolor' }) });

	// The map
	var map = new ol.Map
		({	target: 'map',
			view: new ol.View
			({	zoom: 13,
				center: [649083, 5408224]
			}),
			layers: [layer]
		});

	// New profil in the map
	var profil = new ol.control.Profil();
	map.addControl(profil);
	// New profil outside the map
	var profil2 = new ol.control.Profil(
		{	target: document.querySelector(".options"),
			width:400, height:200
		});
	map.addControl(profil2);

	// Vector style
	var style =
	[	new ol.style.Style(
			{	image: new ol.style.RegularShape(
				{	radius: 10,
					radius2: 5,
					points: 5,
					fill: new ol.style.Fill({ color: 'blue' })
				}),
			stroke: new ol.style.Stroke(
				{	color: [0,0,255],
					width: 2
				}),
			fill: new ol.style.Fill(
				{	color: [0,0,255,0.3]
				})
			})
	];

	// Vector layer
	var source = new ol.source.Vector(
		{	//url: '../data/192553.gpx',
			url: '../data/2009-09-04_rando.gpx',
			format: new ol.format.GPX()
		});
	var vector = new ol.layer.Vector(
	{	source: source,
		style: style
	});
	map.addLayer(vector);

	// Show feature profile when loaded
	var pt;
	source.once('change',function(e)
	{	if (source.getState() === 'ready')
		{	profil.setGeometry(source.getFeatures()[0]);
			profil2.setGeometry(source.getFeatures()[0], 
				{	graduation:250,
					amplitude:1000,
					zmin:0
				});
			pt = new ol.Feature(new ol.geom.Point([0,0]));
			pt.setStyle([]);
			source.addFeature(pt);
		}
	});

	// Draw a point on the map when mouse fly over profil
	function drawPoint(e)
	{	if (!pt) return;
		if (e.type=="over")
		{	// Show point at coord
			pt.setGeometry(new ol.geom.Point(e.coord));
			pt.setStyle(null);
		}
		else
		{	// hide point
			pt.setStyle([]);
		}
	};
	// Show a popup on over
	profil.on(["over","out"], function(e)
		{	if (e.type=="over") profil.popup(e.coord[2]+" m");
			drawPoint(e);
		});
	// Just draw point
	profil2.on(["over","out"], drawPoint);


	</script>
	
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